Steam was never slow for me. I've had that shit since 2003 and it's always run well. It was just an annoying piece of software as it was a requirement for me if I wanted to play Valves shit. Plus it looked fuckin ugly.
Origin is worse than STEAM ever was IMO. It removed bf3 from y account and EA refused to give it back until I finally sent screenshots of my account on origin with bf3 in it. Good thing I ha an SS of my premium as well or I woulda been fucked out of some serious cash. Fuck origin.